I use it for amateur photography on a Canon RP mirrorless camera. For photography only and not for video. Compared to an older and slower card I had before, I find a significant improvement in speed in continuous shooting and in low light with high exposure, as I used to have a delay in saving files on the card before, so I replaced it. Also, a very significant improvement in transferring files to the computer. I have no opinion on video. For 2 months now, flawless operation so far

Because I made a mistake and said something I didn't know, which might help others as well. The card in order to achieve these high speeds uses the UHS-II bus. However, the device I inserted it into does not support this bus, resulting in it running at UHS-I speeds. So instead of reaching 300mb/sec, it reached 100mb/s which is the limit of UHS-I.